Large - No Set Screw - Flat Shoe for 1/2" sq. metal balusters. The base of this shoe is approximately 1-1/2" square. The shoe DOES NOT HAVE A SET SCREW. This shoe must be GLUED down to the tread or floor with metal baluster adhesive. This shoe is made from cast aluminum and powder coated to match the metal balusters unless otherwise noted. These shoes are NOT designed to be used with plowed shoe-rail or plowed handrail. They are designed to go down onto a flat surface or underneath flat bottom handrail.